The long-anticipated lip-sync showdown between Marvel TV superstars (and Pajiba favorites) Clark Gregg and Hayley Atwell debuts this Thursday on Spike. Sadly, we do not yet have a preview of Atwell’s performance, but here’s a glimpse of what Clark Gregg is offering, and what Clark Gregg is some beautiful beefcake shimmy.

Here’s Gregg performing “Toxic.”

Meanwhile, here’s some playful banter between Gregg and Atwell.

Dustin is the founder and co-owner of Pajiba. You may email him here, follow him on Twitter, or listen to his weekly TV podcast, Podjiba.